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Invention Grant
US07696304B2 Thermally stable water-soluble polymer which is crosslinkable at high temperatures 有权
在高温下可交联的热稳定的水溶性聚合物

Thermally stable water-soluble polymer which is crosslinkable at high temperatures
Abstract:
The invention relates to a copolymer containing: i) 80-90% by weight of one or more structural units of the formula A, where R1 is hydrogen or methyl, R2 is C2-C10-alkylene, and Me+ is an ammonium or an alkali metal ion; ii) from 1 to 10% by weight of one or more structural units of the formula B where R3 and R4 are each independently hydrogen, methyl or ethyl; iii) from 1 to 10% by weight of one or more structural units of the formula C, where n is a number from 1 to 6; iv) from 0.1 to 5% by weight of structural units of the formula D where X is hydrogen, an ammonium ion or an alkali metal ion; and optionally, v) from 0 to 10% by weight of one or more structural units of the formula E, where R5 is hydrogen, methyl and/or ethyl, with the proviso that the content in the copolymers of structural units B) and C) is from 6 to 15% by weight.
Abstract(Chinese):

本发明涉及一种共聚物，其包含：i）80-90重量％的一种或多种式A的结构单元，其中R 1是氢或甲基，R 2是C 2 -C 10亚烷基，Me +是铵或碱 金属离子; ii）1至10重量％的一种或多种式B的结构单元，其中R 3和R 4各自独立地为氢，甲基或乙基; iii）1至10重量％的一种或多种式C的结构单元，其中n为1至6的数; iv）0.1至5重量％的式D结构单元，其中X为氢，铵离子或碱金属离子; 和任选地v）0至10重量％的一种或多种式E结构单元，其中R 5是氢，甲基和/或乙基，条件是结构单元B）和C的共聚物中的含量 ）为6〜15重量％。

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